package service;

import java.util.List;

import po.Cart;
import po.Dish;

public interface CartService {
	public int addCart(Cart cart,int cId);//servlet生成CartId和cdId
	public int delCart(String cartId);
	public int updateCart(String cdId,int num);
	public List<Dish> queryCart(int cId);//查询两次数据库
}
